replacing programmer

J.C.E · Jan 9, 2016

will this old programmer just be like for like swap if I replaced it with a Honeywell ST9400C??

cheers guys

[ElectriciansForums.net] replacing programmer

LankyWill · Jan 9, 2016

no the casing different, but their a piece of P***

J.C.E · Jan 9, 2016

lol i know there different in 'shape'
but wiring- is that just like for like?

LankyWill · Jan 9, 2016

Read the manual and use your intellect....

Leesparkykent · Jan 9, 2016

The old Honeywell programmer will have a few links that wont be needed in the new programmer.

davesparks · Jan 9, 2016

Probably will be, but without knowing the details of the system it's impossible to say from looking at the front of it.
The only possible issue I can see is if the system is Gravity dhw and the new programmer doesn't have that option.

Best bet is to get an electrician to do the swap, any electrician should be able to deal with this, if they can't I'd be a bit worried!

J.C.E · Jan 9, 2016

davesparks said:
Probably will be, but without knowing the details of the system it's impossible to say from looking at the front of it.
The only possible issue I can see is if the system is Gravity dhw and the new programmer doesn't have that option.

Best bet is to get an electrician to do the swap, any electrician should be able to deal with this, if they can't I'd be a bit worried!

never done central heating wiring buddy

I would assume its l,n,e and a sl for hw and a sl for heating

ease up fella- i seeked quick advise on a forum.................

Leesparkykent · Jan 9, 2016

J.C.E said:
never done central heating wiring buddy

I would assume its l,n,e and a sl for hw and a sl for heating

ease up fella- i seeked quick advise on a forum.................

Depending on what plan or valve/s are used then you use different connections on the programmer. If you take the programmer off 9/10 times it will have the connections on the back.

davesparks · Jan 9, 2016

J.C.E said:
never done central heating wiring buddy

I would assume its l,n,e and a sl for hw and a sl for heating

ease up fella- i seeked quick advise on a forum.................

I'm not your buddy!

Never assume, work with facts.

The wiring diagrams for all standard arrangements are in a sticky thread in the central heating section of the forum.

If you don't know know basic heating controls wiring then get someone to teach you. Are you still in touch with your mentor from when you were an apprentice? mine is my first port of call if I come up against something I don't know.

Leesparkykent · Jan 9, 2016

davesparks said:
Probably will be, but without knowing the details of the system it's impossible to say from looking at the front of it.
The only possible issue I can see is if the system is Gravity dhw and the new programmer doesn't have that option.

Best bet is to get an electrician to do the swap, any electrician should be able to deal with this, if they can't I'd be a bit worried!

The ST9400c can be set to mini programmer setting for gravity systems. You have to enter installer mode and change parameter number 7 from 0 to 1.

davesparks · Jan 9, 2016

Leesparkykent said:
The ST9400c can be set to mini programmer setting for gravity systems. You have to enter installer mode and change parameter number 7 from 0 to 1.

Well I wouldn't have expected them to stick with the outdated and terribly complex switch on the back of it! That would make it too easy.

Leesparkykent · Jan 9, 2016

davesparks said:
Well I wouldn't have expected them to stick with the outdated and terribly complex switch on the back of it! That would make it too easy.

lol true.

telectrix · Jan 9, 2016

davesparks said:
I'm not your buddy!

Never assume, work with facts.

The wiring diagrams for all standard arrangements are in a sticky thread in the central heating section of the forum.

If you don't know know basic heating controls wiring then get someone to teach you. Are you still in touch with your mentor from when you were an apprentice? mine is my first port of call if I come up against something I don't know.

thought your mentor retired when the 5th edition came out.:38:

davesparks · Jan 9, 2016

telectrix said:
thought your mentor retired when the 5th edition came out.:38:

Hahaha, getting me confused with your good self are you not?

Have you been asleep for part of the story? I'm one of the youngsters here!

telectrix · Jan 9, 2016

mymistake. thought you were older, driving that tractor in your avatar.round.

replacing programmer

J.C.E

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LankyWill

J.C.E

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LankyWill

Leesparkykent

davesparks

J.C.E

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Leesparkykent

davesparks

Leesparkykent

davesparks

Leesparkykent

telectrix

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davesparks

telectrix

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